Palisadegrass effects on N fertilizer dynamic in intercropping systems with corn
| Autor: | ALMEIDA, R. E. M. de, OLIVEIRA, S. M. de, LAGO, B. C., P. JUNIOR, C., TRIVELIN, P. C. O., FAVARIN, J. L. |
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| Přispěvatelé: | RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA, SILAS MACIEL DE OLIVEIRA, ESALQ, BRUNO C. LAGO, ESALQ, CLOVIS P. JUNIOR, INSTITUTO FEDERAL DO PARANÁ, PAULO C. O. TRIVELIN, CENA, JOSE LAERCIO FAVARIN, ESALQ. |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| Popis: | Corn grain yield, nitrogen (N) fertilizer efficiency and distribution to corn alone and three forms of corn and palisadegrass (Urochloa spp.) intercropping implantation was investigated. A field experiment with 15N labeling fertilizer was performed in randomized block design. No form of palisadegrass intercropping implantation affected corn grain yield, total N accumulation and N use efficiency (NUE), which were 8.7 t ha-1, 205 kg ha-1 and 37% respectively. The palisadegrass produced on average 1.9 t of dry mass, absorbing a maximum of 6 kg ha-1 or 5.5% of N fertilizer during corn growing. Furthermore, the palisadegrass did not affect N fertilizer distribution in soil-plant system, in which 28.2% was recovered in the soil and 40.4% in the plants (corn + palisadegrass). The results show that for the three intercropping implantation methods the palisadegrass did not compete with corn for N fertilizer. Made available in DSpace on 2017-10-30T09:24:17Z (GMT). No. of bitstreams: 1 CNPASA2017aabc.pdf: 497446 bytes, checksum: c639bbe3fbfea8c28c4e9333bdaece09 (MD5) Previous issue date: 2017-10-29 |
| Databáze: | OpenAIRE |
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